Orientation of the aortic arch
Normal left sided aortic arch
Right sided aortic arch: TYPES: with aberrant LEFT subclavian artery (5% have CHD) most common type of right arch second most common cause of vascular ring with mirror image branching (95% associated with CHD) 90% tetralogy of Fallot (TOF) (25%) 2.5% truncus arteriosus (30-50%) 1.5% transposition of great vessels (TGV) (5%) with isolated left subclavian artery
Three vessel view The trachea is not present on the right hand side of the aorta and pulmonary artery, but lies between them or very rarely to their left. This appearance results in the normal “V “ configuration changing to a “U” configuration.
Right sided aortic arch with aberrant left subclavian artery
CT scan of a teenager with a right sided aorta and aberrant left subclavian
Link to Kommerell diverticulum

Video clip of Right Sided Aortic Arch